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Sample size recalculation in sequential diagnostic trials

Before a comparative diagnostic trial is carried out, maximum sample sizes for the diseased group and the nondiseased group need to be obtained to achieve a nominal power to detect a meaningful difference in diagnostic accuracy. Sample size calculation depends on the variance of the statistic of int...

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Autori principali: Tang, Liansheng Larry, Liu, Aiyi
Natura: Artigo
Lingua:Inglês
Pubblicazione: Oxford University Press 2010
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Accesso online:https://ncbi.nlm.nih.gov/pmc/articles/PMC2800369/
https://ncbi.nlm.nih.gov/pubmed/19822693
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1093/biostatistics/kxp044
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